Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 5 (May 2013)

organic compounds

Acta Cryst. (2013). E69, o687-o688    [ doi:10.1107/S1600536813009008 ]


R. Vishnupriya, J. Suresh, S. Sivakumar, R. R. Kumar and P. L. N. Lakshman

Abstract: In the title compound, C19H14FN3O3, the central pyran ring adopts a boat conformation with the O atom and the quaternary C atom diagonally opposite displaced by 0.068 (1) and 0.075 (1) Å, respectively, above the mean plane defined by the other four ring atoms. The co-planar atoms of the pyran ring and the fluoro­phenyl ring are nearly perpendicular, as evidenced by the dihedral angle of 87.11 (1)°. The amine group forms an intra­molecular N-H...O(nitro) hydrogen bond. In the crystal, mol­ecules are linked into parallel chains along [100] by weak N-H...N and C-H...N(nitro) hydrogen bonds, generating C(8) and C(9) graph-set motifs, respectively.

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